单项选择题X 纠错
A.using a slightly dirty air filter
B.using oil having an excessive viscosity
C.intercooler or after-cooler leaks
D.carrying the oil level higher than normal
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单项选择题
A.increased capacity of the compressor
B.more efficient operation of the thermal expansion valve
C.decreased capacity of the compressor
D.loss of receiver capacity
单项选择题
A.damage to the un-loader operating diaphragm
B.an increase in current flow to the motor
C.high pressure in the receiver and filter
D.an excessive consumption of crankcase oil
单项选择题
A.first stage
B.second stage
C.distillate cooler
D.salt water feed heater
单项选择题
A.Gravity siphon effect
B.Higher vacuum in the second-stage
C.Difference in brine density between first and second stages
D.lower pressure in first-stage
单项选择题
A.decreased compression ratio
B.higher than normal power consumption
C.un-loader malfunction
D.water in the lubricating oil
单项选择题
A.reduce friction between moving surfaces
B.provide even distribution of bearing wear
C.reduce the accumulation of harmful detergents
D.maintain a constant oil temperature output at each beating
单项选择题
A.vapor feed heater
B.air ejector condenser
C.saltwater heater
D.distillate cooler
单项选择题
A.ballast tanks
B.sludge tanks
C.machinery space bilges
D.cargo hold bilges
单项选择题
A.excessive drive motor speed
B.excessive pump discharge pressure
C.too low of a tilting box angle
D.insufficient drive motor speed
单项选择题
A.high pressure liquid
B.low pressure vapor
C.high pressure vapor
D.low pressure liquid